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Astrophysicists map the Milky Way's 4 spiral arms

Space & Earth / Astronomy

created Jan 05, 2009 | popularity 4.7 / 5 (6) | comments 0

Iowa State University's Martin Pohl is part of a research team that has developed the first complete map of the Milky Way galaxy's spiral arms. The map shows the inner part of the Milky Way has two prominent, symmetric spiral ...


Cepheids in the Solar Neighborhood

Pinning down the Milky Way's spin

Space & Earth / Astronomy

created Sep 19, 2008 | popularity 4.2 / 5 (26) | comments 5

New, very precise measurements have shown that the rotation of the Milky Way is simpler than previously thought. A remarkable result from the most successful ESO instrument HARPS, shows that a much debated, ...


Rogue Black Holes May Roam the Milky Way

Rogue Black Holes May Roam the Milky Way

Space & Earth / Astronomy

created Apr 29, 2009 | popularity 4.5 / 5 (20) | comments 13

(PhysOrg.com) -- It sounds like the plot of a sci-fi movie: rogue black holes roaming our galaxy, threatening to swallow anything that gets too close. In fact, new calculations by Ryan O'Leary and Avi Loeb ...


Stars forming just beyond black hole's grasp at galactic center

Stars Forming Just Beyond Black Hole’s Grasp at Galactic Center

Space & Earth / Astronomy

created Jan 05, 2009 | popularity 3.9 / 5 (8) | comments 0

(PhysOrg.com) -- The center of the Milky Way presents astronomers with a paradox: it holds young stars, but no one is sure how those stars got there. The galactic center is wracked with powerful gravitational ...


Ultracool stars take 'wild rides' around, outside the Milky Way

Space & Earth / Astronomy

created Jun 09, 2009 | popularity 4.7 / 5 (10) | comments 2

Astronomers have found that stars of a recently discovered type, dubbed ultracool subdwarfs, take some pretty wild rides as they orbit around the Milky Way, following paths that are very different from those of typical stars. ...


Clemson astronomers to study mysterious antimatter in the Milky Way

Space & Earth / Astronomy

created Feb 16, 2009 | popularity 3.6 / 5 (7) | comments 3

NASA has awarded Clemson astronomers $244,000 to use data from several space-based gamma-ray telescopes to study a mysterious emission coming from the central regions of the Milky Way galaxy.


NGC 4945: The Milky Way's not-so-distant Cousin

NGC 4945: The Milky Way's not-so-distant Cousin

Space & Earth / Astronomy

created Sep 02, 2009 | popularity 4.7 / 5 (3) | comments 2

(PhysOrg.com) -- ESO has released a striking new image of a nearby galaxy that many astronomers think closely resembles our own Milky Way. Though the galaxy is seen edge-on, observations of NGC 4945 suggest ...


The Milky Way's tiny but tough galactic neighbor

The Milky Way's tiny but tough galactic neighbor

Space & Earth / Astronomy

created Oct 14, 2009 | popularity 4.3 / 5 (13) | comments 1

In the new ESO image, Barnard's Galaxy glows beneath a sea of foreground stars in the direction of the constellation of Sagittarius (the Archer). At the relatively close distance of about 1.6 million light-years, ...


Milky Way a swifter spinner, more massive, new measurements show

Milky Way a Swifter Spinner, More Massive, New Measurements Show

Space & Earth / Astronomy

created Jan 05, 2009 | popularity 4.9 / 5 (21) | comments 5

(PhysOrg.com) -- Fasten your seat belts -- we're faster, heavier, and more likely to collide than we thought. Astronomers making high-precision measurements of the Milky Way say our home Galaxy is rotating ...


Unusual shape of exploded star puzzles scientists

Unusual shape of exploded star puzzles scientists

Space & Earth / Astronomy

created Jun 17, 2009 | popularity 4.3 / 5 (12) | comments 2

Penn State astronomers have used NASA's Chandra X-ray Observatory to produce a new image of a ghostly exploded star with an unusual shape in a galaxy near the Milky Way. Astronomers think the object may be ...


Cosmic Dance Helps Galaxies Lose Weight

Cosmic Dance Helps Galaxies Lose Weight

Space & Earth / Astronomy

created Jul 29, 2009 | popularity 4.2 / 5 (5) | comments 6

(PhysOrg.com) -- A study published this week in the journal Nature offers an explanation for the origin of dwarf spheroidal galaxies. The research may settle an outstanding puzzle in unders ...


Gas around young galaxy

Intense heat killed the Universe's would-be galaxies, researchers say

Space & Earth / Astronomy

created Jul 01, 2009 | popularity 3.6 / 5 (25) | comments 33

(PhysOrg.com) -- Our Milky Way galaxy only survived because it was already immersed in a large clump of dark matter which trapped gases inside it, scientists led by Durham University's Institute for Computational ...


Galactic X-ray emissions originate from stars

Galactic X-ray emissions originate from stars

Space & Earth / Astronomy

created May 05, 2009 | popularity 4.9 / 5 (7) | comments 2

(PhysOrg.com) -- A 25-year old astronomical mystery has been solved: Most of the diffuse X-ray emissions in the Milky Way do not originate from one single source but from so-called white dwarfs and from stars ...


Steven Majewski

New project to probe Milky Way history in Sloan Digital Sky Survey III

Space & Earth / Astronomy

created Dec 15, 2008 | popularity 4.8 / 5 (6) | comments 0

A new project, the Apache Point Observatory Galactic Evolution Experiment, or APOGEE, will survey more than 100,000 Milky Way red giant stars -- bright, bloated stars in a late stage of their evolution. APOGEE ...


The public's "right to starlight" is being eroded by urban illumination that is the bane of astronomers everywhere

We have a 'right to starlight,' astronomers say

Space & Earth / Astronomy

created Aug 15, 2009 | popularity 4.4 / 5 (31) | comments 38

The public's "right to starlight" is steadily being eroded by urban illumination that is the bane of astronomers everywhere, the International Astronomical Union said on Friday.